sysdeps/s390/fpu/math-use-builtins.h

   1 /* Using math gcc builtins instead of generic implementation.  s390/s390x version.
   2    Copyright (C) 2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef MATH_USE_BUILTINS_S390_H
  20 #define MATH_USE_BUILTINS_S390_H        1
  21
  22 #ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
  23
  24 # include <features.h> /* For __GNUC_PREREQ.  */
  25
  26 /* GCC emits the z196 zarch "load fp integer" instructions for these
  27    builtins if build with at least --march=z196 -mzarch.  Otherwise a
  28    function call to libc is emitted.  */
  29 # define USE_NEARBYINT_BUILTIN 1
  30 # define USE_NEARBYINTF_BUILTIN 1
  31 # define USE_NEARBYINTL_BUILTIN 1
  32
  33 # define USE_RINT_BUILTIN 1
  34 # define USE_RINTF_BUILTIN 1
  35 # define USE_RINTL_BUILTIN 1
  36
  37 # define USE_FLOOR_BUILTIN 1
  38 # define USE_FLOORF_BUILTIN 1
  39 # define USE_FLOORL_BUILTIN 1
  40
  41 # define USE_CEIL_BUILTIN 1
  42 # define USE_CEILF_BUILTIN 1
  43 # define USE_CEILL_BUILTIN 1
  44
  45 # if __GNUC_PREREQ (8, 0)
  46 #  define USE_NEARBYINTF128_BUILTIN 1
  47 #  define USE_RINTF128_BUILTIN 1
  48 #  define USE_FLOORF128_BUILTIN 1
  49 #  define USE_CEILF128_BUILTIN 1
  50 # else
  51 #  define USE_NEARBYINTF128_BUILTIN 0
  52 #  define USE_RINTF128_BUILTIN 0
  53 #  define USE_FLOORF128_BUILTIN 0
  54 #  define USE_CEILF128_BUILTIN 0
  55 # endif
  56
  57 #else
  58
  59 /* Disable the builtins if we do not have the z196 zarch instructions.  */
  60 # define USE_NEARBYINT_BUILTIN 0
  61 # define USE_NEARBYINTF_BUILTIN 0
  62 # define USE_NEARBYINTL_BUILTIN 0
  63 # define USE_NEARBYINTF128_BUILTIN 0
  64
  65 # define USE_RINT_BUILTIN 0
  66 # define USE_RINTF_BUILTIN 0
  67 # define USE_RINTL_BUILTIN 0
  68 # define USE_RINTF128_BUILTIN 0
  69
  70 # define USE_FLOOR_BUILTIN 0
  71 # define USE_FLOORF_BUILTIN 0
  72 # define USE_FLOORL_BUILTIN 0
  73 # define USE_FLOORF128_BUILTIN 0
  74
  75 # define USE_CEIL_BUILTIN 0
  76 # define USE_CEILF_BUILTIN 0
  77 # define USE_CEILL_BUILTIN 0
  78 # define USE_CEILF128_BUILTIN 0
  79
  80 #endif /* ! HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT  */
  81
  82 #endif /* math-use-builtins.h */